Server crash

[ZerdoX-x]

java.lang.Error: Watchdog
    at java.base@17.0.8.1/jdk.internal.misc.Unsafe.park(Native Method)
    at java.base@17.0.8.1/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:252)
    at net.minecraft.class_1255.method_20813(class_1255.java:151)
    at net.minecraft.class_1255.method_18857(class_1255.java:141)
    at net.minecraft.class_3215.getChunkBlocking(class_3215.java:1788)
    at net.minecraft.class_3215.method_12121(class_3215.java:1684)
    at net.minecraft.class_1937.method_8402(class_1937.java:204)
    at net.minecraft.class_1937.method_8497(class_1937.java:5059)
    at eu.pb4.graves.grave.Grave.destroyGrave(Grave.java:537)
    at eu.pb4.graves.grave.Grave.tryBreak(Grave.java:574)
    at eu.pb4.graves.grave.Grave.updateSelf(Grave.java:557)
    at eu.pb4.graves.grave.Grave.tick(Grave.java:475)
    at eu.pb4.graves.grave.GraveManager.tick(GraveManager.java:143)
    at eu.pb4.graves.GravesMod.lambda$onInitialize$5(GravesMod.java:111)
    at eu.pb4.graves.GravesMod$$Lambda$6166/0x00007fd468ce3398.onEndTick(Unknown Source)
    at net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents.lambda$static$2(ServerTickEvents.java:43)
    at net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents$$Lambda$4273/0x00007fd468a3caa0.onEndTick(Unknown Source)
    at net.minecraft.server.MinecraftServer.handler$zml002$fabric-lifecycle-events-v1$onEndTick(MinecraftServer.java:4862)
    at net.minecraft.server.MinecraftServer.method_3748(MinecraftServer.java:847)
    at net.minecraft.server.MinecraftServer.method_29741(MinecraftServer.java:671)
    at net.minecraft.server.MinecraftServer.method_29739(MinecraftServer.java:265)
    at net.minecraft.server.MinecraftServer$$Lambda$8950/0x00007fd469080fe0.run(Unknown Source)
    at java.base@17.0.8.1/java.lang.Thread.run(Thread.java:833)

crash-2023-10-01_15.27.37-server.txt

Server crashed maybe after 20 minutes when I left, no players where on the server, so idk really what triggered the crash. In the world was only one graveyard, not sure if it crashes without them.

Using 3.0.0+1.20.1 version of the mod

[Patbox]

This is not related to Universal Graves really, it looks like classic deadlock

[ZerdoX-x]

@Patbox Hmm.. okay. Could you please share any resources with me where I can find any information on how can I fix this?

I am not really into modding and internals of minecraft server, so I would appreciate if you would also explain this to me a little.

[ZerdoX-x]

crash-2023-09-30_02.58.38-server.txt

Even though I checked my yesterday crash log on server and the reason was the same, referencing grave, graveManager, etc. Every time server crashing, it's mentioning graves